I need to replace the entire central air conditioning system we now have.
1. Which central air 3 ton condenser is better - a Rheem SEER 13 or a Carrier SEER 13 and why?
2. Which refrigerant is better and why - R 22 or 410 Puron?
3. Is it better to have the inter-connecting refrigerant piping between the evaporator coil and condensing unit constructed of hard drawn copper tubing with closed cell insulation or of rolled copper?
4. Which is a better thermostat - a Honeywell Digital Automatic thermostat or a Robertshaw Digital Programmable thermostat?

1-Either is a good brand
2-R-22 More companies will service it right now
3-Make no difference if installed correctly
4-Honeywell
Just my opinion...